1. 新建web project 

2. 往lib里copy必须的jar

3. 改写web.xml    

     
       
      	  
          
       
        index.jsp
         
          
        	
       
        springMVC
         	
       
        org.springframework.web.servlet.DispatcherServlet
         	  	
       
        1
         
        
        	
       
        springMVC
         	
       
        /
         
        
     

 

4. 在WEB-INF下新建 springMVC-servlet.xml

    value="/WEB-INF/", 如果这样设置, 那么jsp文件都要放在这个目录下 WEB-INF

　　

5. src下新建package: com.tgb.web.controller   class:  HelloWorldController.java　     

package com.tgb.web.controller;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.stereotype.Controller;import org.springframework.web.servlet.ModelAndView;public class HelloWorldController implements org.springframework.web.servlet.mvc.Controller{	@Override	public ModelAndView handleRequest(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception {		System.out.println("---hello wly--------");		return new ModelAndView("/welcome");	}}

 

6. 新建welcome.jsp, 在WEB-INF下

7. 修改配置 文件 springMVC-servlet.xml

　　

8. IE测试:  http://localhost:8080/springMVC1/test1/helloworld

 

• 如果想把配置文件springMVC-servlet.xml放在config文件夹下并改名的话, 需要更改web.xml配置

       	
      
       springMVC
        	
      
       org.springframework.web.servlet.DispatcherServlet
        	
        		
       
        contextConfigLocation
         		
       
        classpath*:config/spring-servlet.xml
         	
        	
      
       1
        
       
       	
      
       springMVC
        	
      
       /
        
     

 

 

• 传递参数:

在java文件里

package com.tgb.web.controller;import java.util.HashMap;import java.util.Map;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.web.servlet.ModelAndView;public class HelloWorldController implements org.springframework.web.servlet.mvc.Controller{	@Override	public ModelAndView handleRequest(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception {		System.out.println("---hello wly--------");		String hello = "吴丽颖 hello" ;		Map
     
       map= new HashMap
      
       ();		map.put("map1", "提高班1");		map.put("map2", "提高班2");		map.put("map3", "提高班3");		return new ModelAndView("/welcome","map",map);		//return new ModelAndView("/welcome","result",hello);	}}
      
     

jsp里取值:

EL表达式取值
    ${map["map1"]} 
    ${map["map2"]} 
    ${map["map3"]} 
       jstl取值map
    
     
         	${m.key} --- ${m.value} 
      
   　　 
     

• 多个方法如何使用

1. 创建一个MultiController类

  

package com.tgb.web.controller;import java.util.HashMap;import java.util.Map;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.web.servlet.ModelAndView;import org.springframework.web.servlet.mvc.multiaction.MultiActionController;public class MultiController extends MultiActionController{	public ModelAndView add(HttpServletRequest request, HttpServletResponse response){		System.out.println("-add-");		return new ModelAndView("/multi","method","add");	}	public ModelAndView update(HttpServletRequest request, HttpServletResponse response){		System.out.println("-update-");		return new ModelAndView("/multi","method","update");	}}

　　

2. 改spring-servlet.xml

　 1.  引入paramMethodResolver   2. controller类调用 

　　

3. 访问时: http://localhost:8080/springMVC1/test1/multi?action=update